As usual, tttaylorrr has it under control, and one of our newer members, RickyNY has jumped right in with quality advice as well.

My suggestion basically is a "ditto" to what has already been said. Study the stickies on basic husbandry and how to set up enclosures.

I understand you want to get this done asap, but waiting to bring the snake home will DEFINITELY be in the best interest of you AND the animal.

Getting your setup all dialed in will save you a LOT of potential headaches, as well as provide a safe, healthy environment for the animal. Granted the excitement is intense when getting a new pet, this is a pet that will live for 30+ years, so waiting another week would be best in the long run.